"You're going to see a lot of crossovers happening where girls with curves are working for mainstream [brands]," Becca Thorpe, a former model and now an agent at Muse Model Management in New York, told ABC News.

"I've seen the transition happen over the past couple decades -- from, 'I'm in the plus division' to just, 'I'm a model.'"

"I don't think anyone should be called plus-size," she said. "I think it's derogatory to anyone -- it's a label. I'm a model; I don't think I need 'plus-size' in front of it."

Mike Pont/Getty Images

Tyra Banks, another model who can't stand the word 'plus-size.' Seen here on May 6, 2014 in New York.

Banks has said she prefers to call girls with curves "fiercely real" and Queen Latifah once told Women's Wear Daily that plus-size is "a word that we need to bury."

Body image expert Robyn Silverman said the word on its own isn't a problem, it's how it's perceived.

“On the front side, there’s nothing wrong with it,” she told ABC News. “However, what’s happened is that the term has morphed. Instead of describing clothing size, it’s describing a body size with this negative connotation.”

She compares the fight to get rid of the word to similar movements around “fat” and “bossy.”

“People also want to ban bossy! Because bossy is now associated with all these negative terms, but it shouldn’t be,” Silverman said. “It should just mean 'like a boss.'”

She pointed out that research has linked the word “fat” to other characteristics such as laziness and ugliness.

“The term fat is no longer just a descriptor of weight or size, but rather of character,” Silverman said.

Not everyone has such vitriol for the term "plus-size."

Thorpe said it's still a useful descriptor in the modeling industry to help find clients the type of model they want for a job.

Writer Nicolette Mason pointed out that when it comes to clothes, plus-size remains an important distinction.

"Especially when you're shopping for clothes and need to find your size," said Mason, author of Marie Claire's popular fashion column, "Big Girl in a Skinny World."

"Until plus-sizes are more readily available to satisfy the two thirds of American women who wear a size 14 or higher, there does need to be some terminology."